We have them in Mass. now, though haven't seen them in my yard yet. Only a matter of time. Ugh. A local nursery got them in a load of compost. She is working with UMass to study them. Showed us how to clean a plant (I don't ever want to have to do that). Could ruin her business, but she stoically cleaned and repotted some 10,000 plugs and pots.